--- title: The Monitor | Sentry Equipment | John Powalisz description: John Powalisz, Director of International Sales, is dedicated to sharing his technical expertise and knowledge of sampling equipment and systems in power plants, refineries, chemical and food processing facilities garnered from more than 19 years with the company. John has worked with clients worldwide to help them to comply with regulations and optimize processes by applying proper sampling hardware and techniques. While he is well-versed in all Sentry products and applications, he is particularly focused on the food and beverage and power generation markets as well as emerging market development. --- [About Us](https://sentry-equip.com/company) | [Careers](https://sentry-equip.com/careers) | [Resources](https://sentry-equip.com/resources) | [Contact Us](https://info.sentry-equip.com/contact-us) | [Find Your Local Rep](https://sentry-equip.com/vendors) | [Blog](https://blog.sentry-equip.com/) [![Sentry Equipment - Sampling Systems - Sampling Equipment](https://532305.hs-sites.com/hubfs/Images/2017/Sentry-Eqiupment-logo.png) ](http://www.sentry-equip.com) [I am looking for](https://sentry-equip.com/catalogsearch/result/?q=search) Call Us [Log In](https://sentry-equip.com/customer/account/login/) [![Shopping Cart](https://532305.hs-sites.com/hs-fs/hubfs/Images/2017/Shopping-Cart-W-Zero-Items.png?width=50&name=Shopping-Cart-W-Zero-Items.png "Shopping Cart")](https://sentry-equip.com/checkout/cart/) [**](https://532305.hs-sites.com/author/john-powalisz#sidr) [**](https://532305.hs-sites.com/author/john-powalisz#sidr) [Log In](https://sentry-equip.com/customer/account/login/) [![Shopping Cart](https://532305.hs-sites.com/hs-fs/hubfs/Images/2017/Shopping-Cart-W-Zero-Items.png?width=50&name=Shopping-Cart-W-Zero-Items.png "Shopping Cart")](https://sentry-equip.com/checkout/cart/) # [The **Monitor**](https://blog.sentry-equip.com) ## Production Process Insights ### Posts by Topic - [Downstream (60)](https://532305.hs-sites.com/topic/downstream) - [Food & Beverage (52)](https://532305.hs-sites.com/topic/food-beverage) - [Liquid & Slurry (51)](https://532305.hs-sites.com/topic/liquid-slurry) - [Power (51)](https://532305.hs-sites.com/topic/power) - [Steam & Water (48)](https://532305.hs-sites.com/topic/steam-water) - [Upstream & Midstream (43)](https://532305.hs-sites.com/topic/upstream-midstream) - [Company News (35)](https://532305.hs-sites.com/topic/company-news) - [Gas (32)](https://532305.hs-sites.com/topic/gas) - [Solids & Powder (28)](https://532305.hs-sites.com/topic/solids-powder) - [Any Application (24)](https://532305.hs-sites.com/topic/any-application) - [Cement (12)](https://532305.hs-sites.com/topic/cement) - [Mining (10)](https://532305.hs-sites.com/topic/mining) - [Pharmaceutical (10)](https://532305.hs-sites.com/topic/pharmaceutical) [See More](https://532305.hs-sites.com/author/john-powalisz#) ## John Powalisz ![Picture of ](https://532305.hs-sites.com/hubfs/Author_Photos/AAEAAQAAAAAAAAP1AAAAJDhkNzU4ZGVhLTA5YWUtNGY0ZS1hYmEyLTkzYTU2MjI2ZDg0ZA.jpg) John Powalisz, Director of International Sales, is dedicated to sharing his technical expertise and knowledge of sampling equipment and systems in power plants, refineries, chemical and food processing facilities garnered from more than 19 years with the company. John has worked with clients worldwide to help them to comply with regulations and optimize processes by applying proper sampling hardware and techniques. While he is well-versed in all Sentry products and applications, he is particularly focused on the food and beverage and power generation markets as well as emerging market development. Find me on: ### Recent Posts ## [Automate Sample Flow to Maximize Accuracy](https://532305.hs-sites.com/reducing-workload-for-plant-operators-automating-sample-flow) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 3/22/21 8:00 AM [![](https://532305.hs-sites.com/hubfs/Sample-Automation-Blog-Social.jpg) ](https://532305.hs-sites.com/reducing-workload-for-plant-operators-automating-sample-flow) Incorrect flow rates can cause incorrect critical measurements, unreliable steam and water sample analysis system (SWAS) performance and damaged equipment. Automating sample flow control on your SWAS can help you meet plant process needs without high personnel costs and metric concerns. [Read More](https://532305.hs-sites.com/reducing-workload-for-plant-operators-automating-sample-flow) 1 Comment [Click here to read/write comments](https://532305.hs-sites.com/reducing-workload-for-plant-operators-automating-sample-flow#comments-listing) Topics: [Power](https://532305.hs-sites.com/topic/power), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [Steam and Water Management: Going Beyond Power Plant Processes](https://532305.hs-sites.com/steam-and-water-management-going-beyond-power-plant-processes) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 2/15/21 8:00 AM [![](https://532305.hs-sites.com/hubfs/Steam-Water-Management-Blog-Social.jpg) ](https://532305.hs-sites.com/steam-and-water-management-going-beyond-power-plant-processes) High-quality steam is the key to safe and efficient production in processing plants including refineries, chemical facilities, pulp and paper production, food processing and co-generation plants. Improper chemistry control in the steam cycle can leave your plant at risk for buildup of impurities and corrosion of equipment, insufficient power production, and damages to the environment and plant personnel. [Read More](https://532305.hs-sites.com/steam-and-water-management-going-beyond-power-plant-processes) 1 Comment [Click here to read/write comments](https://532305.hs-sites.com/steam-and-water-management-going-beyond-power-plant-processes#comments-listing) Topics: [Any Application](https://532305.hs-sites.com/topic/any-application), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [The Importance of Industrial Boiler Water Treatment](https://532305.hs-sites.com/the-importance-of-industrial-boiler-water-treatment) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 2/1/21 8:00 AM [![](https://532305.hs-sites.com/hubfs/Industrial-Boiler-Blog-Social.jpg) ](https://532305.hs-sites.com/the-importance-of-industrial-boiler-water-treatment) Industrial steam plants and combined steam and power facilities, also known as [cogeneration plants](https://532305.hs-sites.com/why-should-you-sample-in-cogeneration-plants), commonly use boilers to provide high-quality steam and electric power. As the heart of the plant, these boilers are crucial to efficient energy creation. If impurities enter the boiler feedwater or corrosion develops inside the boiler, equipment can be damaged, the plant can experience unexpected downtime, and energy creation can be extremely ineffective. It’s critical to [limit impurities and corrosion ](https://www.suezwatertechnologies.com/handbook/chapter-11-preboiler-and-boiler-corrosion-control)in a boiler system to maximize boiler output and prevent these challenges. [Read More](https://532305.hs-sites.com/the-importance-of-industrial-boiler-water-treatment) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/the-importance-of-industrial-boiler-water-treatment#comments-listing) Topics: [Any Application](https://532305.hs-sites.com/topic/any-application), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [How to Succeed with SWAS Instrumentation Best Practices](https://532305.hs-sites.com/succeed-swas-instrumentation-best-practices) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 1/4/21 8:00 AM [![](https://532305.hs-sites.com/hubfs/SWAS-Best-Practice-Blog-Social.jpg) ](https://532305.hs-sites.com/succeed-swas-instrumentation-best-practices) Cycle chemistry management is the best way to help prevent, recognize and minimize potentially devastating water chemistry events in a facility. A well-planned and designed sampling system with the right instrumentation can help provide the critical insights you need to monitor cycle chemistry, protect equipment and ensure safe operation. [Read More](https://532305.hs-sites.com/succeed-swas-instrumentation-best-practices) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/succeed-swas-instrumentation-best-practices#comments-listing) Topics: [Power](https://532305.hs-sites.com/topic/power), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [Two Ways to Prevent Magnetite Fouling Your SWAS](https://532305.hs-sites.com/two-ways-to-prevent-magnetite-in-your-swas) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 12/21/20 8:00 AM [![](https://532305.hs-sites.com/hubfs/Magnetite-Mitigation-Blog-Social.jpg) ](https://532305.hs-sites.com/two-ways-to-prevent-magnetite-in-your-swas) ** [Read More](https://532305.hs-sites.com/two-ways-to-prevent-magnetite-in-your-swas) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/two-ways-to-prevent-magnetite-in-your-swas#comments-listing) Topics: [Power](https://532305.hs-sites.com/topic/power), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [Optimize Sample Cooler Temperatures for Ideal Results](https://532305.hs-sites.com/optimize-sample-cooler-temperatures-optimal-results) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 11/30/20 8:00 AM [![](https://532305.hs-sites.com/hubfs/Sample-Cooler-Blog-Social.jpg) ](https://532305.hs-sites.com/optimize-sample-cooler-temperatures-optimal-results) The thermal management of sample coolers is critical to the proper function of a steam and water analysis system (SWAS). Extreme temperatures can lead to erratic or unreliable data, equipment damage and unscheduled downtime. As the [EPRI standard states](https://www.epri.com/research/products/CS-5164), the goal of a sample system is to “transport and condition a sample without altering the characteristics of interest. The system parameters which need to be controlled are velocity, pressure and temperature.” [Read More](https://532305.hs-sites.com/optimize-sample-cooler-temperatures-optimal-results) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/optimize-sample-cooler-temperatures-optimal-results#comments-listing) Topics: [Power](https://532305.hs-sites.com/topic/power), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [Prevent Sampling Errors with Secondary Cooling Systems](https://532305.hs-sites.com/prevent-sampling-errors-secondary-cooling-systems) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 9/8/20 8:00 AM [![](https://532305.hs-sites.com/hubfs/Secondary-Cooling-Blog-Social-1.jpg) ](https://532305.hs-sites.com/prevent-sampling-errors-secondary-cooling-systems) ****   The goal of a steam and water analysis system (SWAS) in power generation is to properly condition the sample so that it is representative of the process. Secondary sample cooling provides a way to eliminate measurement uncertainty issues by removing the variable of temperature from the measurement. Secondary cooling also provides a temperature “cushion” when primary cooling systems are undersized or underperforming.   [Read More](https://532305.hs-sites.com/prevent-sampling-errors-secondary-cooling-systems) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/prevent-sampling-errors-secondary-cooling-systems#comments-listing) Topics: [Power](https://532305.hs-sites.com/topic/power), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [Why Should You Sample in Cogeneration Plants?](https://532305.hs-sites.com/why-should-you-sample-in-cogeneration-plants) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 7/27/20 8:00 AM [![](https://532305.hs-sites.com/hubfs/CoGen-Blog-Social.jpg) ](https://532305.hs-sites.com/why-should-you-sample-in-cogeneration-plants) Combined steam and power facilities, also known as cogeneration plants, use heat recovery steam generators or traditional boilers to provide both high-quality steam and electric power from one fuel source. With natural gas achieving about 30-40% efficiency for power only, creating and sampling your process steam enables combined cycle cogeneration plants to operate at [efficiencies between 65-90%](https://www.sciencedirect.com/topics/engineering/cogeneration). [Read More](https://532305.hs-sites.com/why-should-you-sample-in-cogeneration-plants) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/why-should-you-sample-in-cogeneration-plants#comments-listing) Topics: [Power](https://532305.hs-sites.com/topic/power), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [Match the Right Heat Exchanger to Your Application](https://532305.hs-sites.com/match-the-right-heat-exchanger-to-your-application) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 7/20/20 8:00 AM [![](https://532305.hs-sites.com/hubfs/heat-exchanger-blog-social.jpg) ](https://532305.hs-sites.com/match-the-right-heat-exchanger-to-your-application) Many industrial processes require the addition or removal of heat and heat exchangers are often used to do this. There are many heat exchange applications within processing plants such a process heating and cooling, vapor condensing to sample conditioning. Ensure you are meeting your application needs by selecting the right specialty heat exchanger.  [Read More](https://532305.hs-sites.com/match-the-right-heat-exchanger-to-your-application) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/match-the-right-heat-exchanger-to-your-application#comments-listing) Topics: [Any Application](https://532305.hs-sites.com/topic/any-application), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) ## [How to Succeed with Sample Conditioning](https://532305.hs-sites.com/how-to-succeed-with-sample-conditioning) Posted by [John Powalisz](https://532305.hs-sites.com/author/john-powalisz) on 5/26/20 10:00 AM [![](https://532305.hs-sites.com/hubfs/succeed-sample-condition-blog-social.jpg) ](https://532305.hs-sites.com/how-to-succeed-with-sample-conditioning) Cycle chemistry is an often overlooked, but critical, process in a power plant that helps provide and maintain the protective layer on equipment and surfaces. Monitoring your cycle chemistry starts with sample conditioning.  [Read More](https://532305.hs-sites.com/how-to-succeed-with-sample-conditioning) 0 Comments [Click here to read/write comments](https://532305.hs-sites.com/how-to-succeed-with-sample-conditioning#comments-listing) Topics: [Power](https://532305.hs-sites.com/topic/power), [Steam & Water](https://532305.hs-sites.com/topic/steam-water) [View All Posts](https://532305.hs-sites.com/all) [Next Page](https://532305.hs-sites.com/author/john-powalisz/page/2) [![Beginner's Guide to Representative Sampling](https://no-cache.hubspot.com/cta/default/532305/2dcb751d-f00a-459f-a0c3-30b0ed84ac0d.png)](https://cta-redirect.hubspot.com/cta/redirect/532305/2dcb751d-f00a-459f-a0c3-30b0ed84ac0d) ### Subscribe to Email Updates ### Posts by Topic - [Downstream (60)](https://532305.hs-sites.com/topic/downstream) - [Food & Beverage (52)](https://532305.hs-sites.com/topic/food-beverage) - [Liquid & Slurry (51)](https://532305.hs-sites.com/topic/liquid-slurry) - [Power (51)](https://532305.hs-sites.com/topic/power) - [Steam & Water (48)](https://532305.hs-sites.com/topic/steam-water) - [Upstream & Midstream (43)](https://532305.hs-sites.com/topic/upstream-midstream) - [Company News (35)](https://532305.hs-sites.com/topic/company-news) - [Gas (32)](https://532305.hs-sites.com/topic/gas) - [Solids & Powder (28)](https://532305.hs-sites.com/topic/solids-powder) - [Any Application (24)](https://532305.hs-sites.com/topic/any-application) - [Cement (12)](https://532305.hs-sites.com/topic/cement) - [Mining (10)](https://532305.hs-sites.com/topic/mining) - [Pharmaceutical (10)](https://532305.hs-sites.com/topic/pharmaceutical) [see all](https://532305.hs-sites.com/author/john-powalisz#) ### Sentry Equipment #### World Headquarters 966 Blue Ribbon Circle North Oconomowoc, WI 53066 [+1-262-567-7256 ](tel:+1-262-567-7256) ### Sentry Equipment - Houston #### Process Monitoring Tech Center 5285 Schurmier Rd. 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